Need Help With Setting The Value Of An Object Property Thru a DocumentUpdatingEvent

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3

This Line Causes the Script to Fail - I can read from the object (get) but I cant “Set” the property
SHPQUALITYObject.set("closed_dt", xwiki.getDate())
I know this because the comment isnt updated and the attribute of the object isn’t set.

Full Script (with suggestions added) Same issue as before

{{groovy}}
  def docSource = xcontext.method.input.get(1)
  def SHPDocObject = docSource.getObject("SHPDocuments.SHPDocumentClass")
  if (SHPDocObject) {
      //Lets See if its in Status Control
      def SHPQUALITYObject = docSource.getObject("SHPQUALITY.SHPQUALITYClass")      
      if (SHPQUALITYObject) {
         //Get the status of This Document (the one thats changing)
         def newStatus = SHPQUALITYObject.get("status").value
         //Get the old Document (the one that already exists if there is one )
         def oldDoc = docSource.getOriginalDocument()
         def oldSHPQUALITYObject = oldDoc.getObject("SHPQUALITY.SHPQUALITYClass")      
         def oldStatus = oldSHPQUALITYObject.get("status").value
          if (newStatus == "Closed") {
               // Set Closed Date as today
               SHPQUALITYObject.set("closed_dt", xwiki.getDate())
               //Append the Comment
               docSource.setComment("CLOSED")
          }
       }
  }
{{/groovy}}